Mold lock



F. J. L loMN Nov MOLD LOCK Filed April 1B, 1922 21E- EE ummmunnullllllllllllp" MTI.

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TTORN EY Patented Nov. 24, 1925.

UNITED STATESY FREDERICK JOSEPH LIOMIN, OF GLEN RIDGE, NEW` JERSEY.

MOLD LOCK.

Application led April 18, 1922.

To di whom t may concern.'

Be it known that I, FREDERICK JOSEPH Lioarirt, a resident of Glen Ridge, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Mold Locks, of which the following is a specification.

This invention relates to concrete molds and it more especially appertains to means for locking together the component parts of such contrivances.

The main object of the invention is to provide an improved lock of the character described, which shall be both a time and labor saving appliance as compared with devices heretofore used for the purpose of interrelativelyY locking panels of concrete molds to the supports or studding thereof.

rino-ther object is to produce a loch of the iature set forth capable of holding together iirn'xly without slipping, a plurality of mold sections com posed 'of panels and studding, so that they can be shifted as a unitary whole, whenever the completion of each division of the work permits.

A further object is the production of a loci; of the type speciiied so constructed and arranged that a comparatively small number of duplicates thereof is required to be handled in order to obtain the necessary clamping action upon the detachable parts of the mold.

Still another object is the provision in a loch of the class mentioned, of elements devoid of screw-threads and other parts liable to become clogged up with concrete, and which shall free itself from the latter when applied in operative position.

fu-li still further object is to furnish lock of the kind referred to, admitting of duplicates thereof being employed, witl'iout interference, on opposite sides of the supports or studding, and which will neither weaken the latter, nor require the same to be made eX- cessively deep to withstand imposed strains An additional object is to supply a practical lock of the genus alluded to comprising few and simple elements, light but strong and durable7 readily erected or taken down, conveniently operated as well as easily maintained in working order, besides amenable to low cost of manufacture.

@ther objects and advantages of the invention will become apparent as the speciiication proceeds.

Serial No. 555,452.

Vv'ith the aforesaid objects in view, the invention consists of the novel combinations and :n'rangements of parts hereinafter described in their preferred embodimel'its,

pointed out in the subjoined claims, and illustrated on the annexed drawing, wherein like parts are designated by the same reference characters throughout the several views.

Generally described, the invention under consideration includes in lts organization a substantially L-shaped `member provided with an inclined slot in one leg thereof. This slot is capable of taking over an element projecting from a side flange of the removable mold panel, inwardly thereover. The other leg of the member isadapted to engage an outer' abutment formed on the mold support or studding, while an inner abutment on the latter serves to receive the edge of the panel. A plurality of members and elements are arranged along the edges of each panel and when a force is applied endwise upon the members, the inclined slots in them exert a wedging action against the sides of the elements which is transmitted to the panels and press the same tightly toward the inner abutments, the members being applicable or removable independently of one another, on both sides of the studding.

The advantages of the invention as here outlined are best realized when all of its features and instrumentalities are combined in the one and same structure, but, useful devices may be produced embodying less than the whole.

It will be obvious to those skilled in the art to which the invention appertains, upon becoming conversant with the details thereof, that the same may be incorporated in several different constructions. The accompanying drawing therefore, is submitted merely as showing the preferred eXempliiication of the invention.

In the said drawing Figure 1 is a fragmentary side view of a panel and one of its supporting studs, associated in a concrete mold, showing the application thereto of this improved lock;

Fig. 2 is a partial edge view of the lock shown in the preceding figure, looking from the right hand side thereof; and

Fig. 3 is4 a section taken transversely of Fig. 2, on the line 3 8, looking upwardly in the direction pointed out by the arrove thereto appertainin.

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mate combinations of elements capable of yielding novel andv useful results.

A represents one o-f the sup-ports or studding posts, shownas built; up of-struetural steel beams B, which; may be of Z-seci tion a-nd have their web portions (B) set apart Vso as to provide al sufficient space therebetween. The larger lilanges- C of these 'Z-beams whichare turned from-each other,

face also the inte-rior ofthe mold? where the concrete is poured.V A plate-D is secu-red,

on the exterior side of the support to the beams outer anges E, thatl point one toward the other.v Suitably fastened within the space intermediate the said beams, is a strip ofy wood F located flush with the flanges Cf at the base thereof and: used for instance to attach the means ywhich carry the rods employed to reinforce the concrete, in a mann-er welllrnown. At G is indicated i a portion of a detachable mold panel having an offset flange Hf overlyingone of the flanges C of the support A.

The parts hereinaboyereferred toy constitute a characteristic embodiment o f steel` molds as found inf moderny practice for casting concrete structures of various' kinds.

However, the improvement to the existingl constructions, now to be outlined in detail, can equally as well be incorporated with composite molds made of woodv and metal, or even ofwood alone, with minormodilications.

From the inner edge of the panel flange H, extends upwardI or outwardly" at substantially right-angles thereto, a lip or rib 11. Placed; adjacent to and closelyfollow'- ing the latter, preferablyonr the side thereofnearest the panel plate Gr, isa strengthening bar 13, of about the same height as the said lip 11. It will be noticed with particular referenceto Fig. 3 oftheanneXeddra-Wing, that both the lip or rib 11 andthe Said bar 13, are so situated as to lie free and clear of the overhanging edge of the connecting' or tie plate D on the outer side of the supporting post A. By positioning these parts in the manner described, the mold panel in its entirety can readily bey withdrawn without disturbing any of the-.supports or the other panels ordinarily associated therewith. Altho the up orl outstanding ribv 11 has been illustrated as constituting a centinuation of the flange H, while the bar 13 is a separate adjunct, it is obvious that these parts could be either integral with,

or both affixed as a unitary piece to the panel, dependingupon the conditions encountered in practice.

At-15 is represented one of the stud-lil e elements which.. project from the bar 15, preferably overhanging the panel flange H These elements are located at predetermined distances apart along the edges bordering each paneh, and may be either of cylindrical or oblong cross-section. As shown in Fig. 1, the reference-character 15" is used to point out the permissible variation in formof the said elements, which this Viewv exemplifies. Stud elements possess-ingboth of the-contours mentioned can also be employed in conjunction with the-panels, being in such a case preferably' so arranged that. the larger sizes of the elements will be used where the strain or pressure imposed on a panel-is-themost-severe. These elements and the bar 13 whichA carries them may be secured to one another and to the rib 11 and flange- Hv byv any appropriate means, for instance byelectric welding, so as to unite them intoa solid entity.

Coacting with the said element 15 (or 15a) and the under face of the tie-plate l), is a wedge or `key member 17. The latter consists preferably of an angular or L- shaped body having one leg 1 9 thereof bear- '3^ ingagainst the outer or upper surface of the stud element, while its other leg 21 takes under the4 Oyerhanging portion of the said plate D. The leg 19 of thesaid key meniber extends in ward or downwardly at apl to the larger end 25V of the member 17, a

wedging action is produced both in an outwardLV direction along the contactingv surfaces of the leg 21 with the plate .1), and inwardly by the bear-ing'- face 23' exerting a thrust upon the thereto appertainiug stud element.

In order to steady' the member 17 and prevent its leg 19 to cant or tilt away from the stud element carried bythe bar 18', another bearing surface lie provided'on an extension 29 ofthe said leg, which extension may be directly connected to the latter by a part 31 foruiiedintegral therewith, as seen to best advantageY in 1. 1t will be perceived on inspectingthe ligure last named, that the bearing' surfaces 23 and 27', constitute the opposed' parallel sides ofV au open ended obliquely disposed slotor gap 33, which terminates at 35,a certain distance from the free or bottom edge 37 ofthe leg 19. The before mentioned lower or inner bearing surface 27 IUS lll)

not only maintains the key member 17 in proper guiding relation with the 'stud elenient, but it serves also to pull or drag away the leg` 2l from the projecting ledge oi' the tie-plate D, when the larger end 89 oit the extension 29 is tapped or rapped with a hammer, or the like. Owing to the open nature of the slot 33 and the comparatively short Working trices of the therewith coacting stud element (l5 or 15a), any concrete or cement which may happen to become lodged upon or adhere to either ot them, will easily be knocked oil' vvhen these parts are driven together or apart. In other Words, the member and copperating element are sell"- cleaning in that respect.

From the foregoing it will be apparent, that there is no i'veakening ot the supporting posts by the key members, and the former do not need to be made excessively deep to accommodate the latter or to resist the strains produced therebyvl nor will the said members interfere with `the application or ope-ration ot one another it placed in opposed relation on the sides oit the said stur e ding A. In view ot the tact that the contacts ot the panel ilange II and the leg 2l with the sur'taces C and l) respectively engaged thereby, are rather extended, While the binding produced intermediately thereof, upon the stud element is quite intense on account of the small Working areas ot the parts in engagement, it will be understood that the hold or grip becomes so rm that sections o't the mold including several panels and supports, can be transported or hoisted in one piece, as the Work for which they are used in progressing, for instance, in making concrete Walls, piers or arches.

The key members themselves are ot conipact and strong construction and not liable to get out ot order even with the rough usage commonlyv received. Besides, as the members are ot fair size, the chance oi their being lost in the dirt around places where erection is going on, is much less than with pins, bolts and nuts now in prevalent use. The method 'followed in applying the keys to, er stririping them from the molds is so simple that the lowest class of labor employed can quickly learn to deXtrously handle the saire. The key engaged elements l (15a) are sufficiently projecting to alilord gripping means Wherewith the panels may be manipulated When placed into or out ot their assigned positions. These elements preferably have their exterior surraces hardened to enable them better to resist Wear and tear incidental to driving the wedge keys thereover or backing them ott the latter.

`While a certain preferred embodiment ot this device has been shown and described, it will be understood that changes in the form,

rrangements, proportions, sizes and details thereof may be made, Without departing from the scope et the invention as defined by the appended claims.

Having described my invention what I desire to secure by Mettere Patent and claim, is

l. In a mold ot the character described, the combination et an exteriorly and interiorly flanged support, a panel detachably bearing on' the interior flange thereof provided with a rib, and a member adapted for Wedgeivise insertion intermediate the inner side ot said rib and the exterior liange of said support, acting to torce said panel against the latter.

2. In a mold of the character described, the combination ot' spaced vapart supports having extended inner and outer overhangprojections in approximate parallelism with the mold space, a detachable panel carried by the inner` ones ot said projections including a rib extending substantially from the edge thereof, and a Wedge member one side ot which is adapted to engage the inner tace of said rib While its other side finds an abutment against the outer projections ot' said supports.

2l. In a mold ot the characted described, the combination of a support, a disconnecti ble panel coacting with the mold side thereoit, an element substantially parallel to said panel carried thereby in proximity to the same, and a member capable of engaging said element together with the tar side ot said support so as to exert a wedging action therebetween and force the panel against the support on the near side.

l. In al mold oit the character descril ed, the combination of spaced supports, a panel separately held thereby, embodyinga rib near its inner edge, an element extending from said rib having its axis in parallelism with said panel, and a member adapted to take over said element capable of exerting a thrust against the same and the outer part of one of said supports, so as to force the panel upon the latter.

5. In a. mold oi the character described, the combination ot a panel included in the side thereof, a support against which one edge of said panel rests, a rib projecting from the latter adjacent said edge, an element extending over the panel inwardly from said rib, a member offset relatively to said element and said support capable oi exerting a binding action upon both of the last named parts, and means coaeting with said member to maintain it in operative relation with said parts.

6. In a mold oit the character described, the combination of a support con'iprising inner and outer abutments, a panel having one edge thereof coacting with the inner one of said abutments, said edge being provided with a reinforced rib, an element oiiset lOl! therefrom, .a lock-i member including .angular ly .disposed legsjin. engagement with said element and the outer one of theiabutments, respect-ively,and means with 'one 'lof .said legs cooperating with the element-toinaintain said member in operative alignment therewithand the Vlast Vmentioned abutment.

7..l[n afinold of thefcharacter described, the combination orspacedsnpports, reA movable panel therebetween iprovided with a reinforced ribnear oneedge, studelements projecting at givcndistances apart from said rib, and a loclrmember:including an inclined seaty adaptedi to detacliiably engage one or the other of said elements, being capablevot1 exerting. a dredge. action upon the same. and the adjacent one ol `said supports, thereb7 forcing-:said panel against the latter.

8.,.' In a; .mold :of the. lcharacter described, the combination ot Vsupports spaced apart, a

panelidetachably.engaging. one ot the 'latter providedfwitl'raribnear itstinneredge, a studv element of..elongate cross-sectionferctendingidimm said rib, said leleinenthaving the major. axis oi'' .its s ction obliquely disposed rela-tively to said panel, and a ylock member coacting with one of said supports, said member beingebliquely slotted to take over theelementand adapted when forced thereoverftopress the therewith connected panel against Ythe same one of said supports.

9.- In a mold of the `character described, the combination of a, .support haringinner and outer abutment flanges, a panel arranged torest atvone edge thereorlupon the inner one of said flanges, said'edge being provided with a rib, a strengthening bar foll'o-Wingithe latter, a. 'stud element carried by: said bar, and anA L-shaped member iformed'with an oblique slot in one of its legs adaptedto engage said element While its: other 'leg fcoacts" with the onter flange, :the construction andarrangement being'such that the forcing of said membergenntcf: .the =..'ele1nent pr.essesz.tlie

g edgei of the :panel against :the abutment first z named.

10. In: a;- ;1n oldff ot fthe character described, the Y combination ofespaced supports, panel ysaid..element,;the. construction and arrangement. belng'sulch .that drwingw'olfsaid' Ameinberxin one .drrectronvwedges it .against :the

thereto appertaining snpport'witlra :faceo'l -saic :gap rbcaringonfone side of zthe element, while a counter acting force causes ythe other face of then gapto exert a. thrust zupon ythe opposite side of the element; thereby releasi ng the .clamping pressure intermediate. fthe panel,andfrthcfsaid support.

l1.. .In a-moldxfof the'Gharacter.. described, the. combina-tion Lof.; ai supporta having substantially fparallel..v flanges', a: `panel:.rde-tafeliably --bearingiupon one: o'ithe latter, afrib projecting fapproximately Vat-1 right .tangles from said. panel, an elementfextending over the panel fronrsaid rib;A and alongitudinally insel-table and -remoyable locking member having a diagon'allyy disposed i openrended gap; adapted toxengage .said elementintermedi-ate .the .same and.:the'otfheryy one .of said ianges,

12.1dn a inoldof thefcharacter;described, the combinationotv spacedapazrt supportsincludingI inner. andv outer yabutments, a; detachable `panel adapted tozbear on theinner one of said abntments; and comprising. a rib risingsubstantially trom ythe edgey the rect', an element f proj ectingrsidewise ffrom said rib, and a; member-having an' openended inclined .gap forming azdouble Wedge` vtherein `yenabling it to engage-.saidele-ment yalternatel)7 on` eitherz-side between the-:face of the. rib and one oftherabutments. l

FREDERICK J'GS'EPI-I L'I'O'MIN. 

